Nut-lock.



J. R. LEEMING.

NUT LOCK.

APPLICATION FILED DEC. 27, 1913.

1,128,335. Patented Feb. 16, 1915.

1m: NORRIS PETERS co.. wAsl-lmcrurv, n.

JOHN R. LEEMING, 0F SOMERSET, COLORADO.

NUT-LQCK.

' Specification of Letters Patent.

Patented Feb. 1c, 1915.

Application filed December 27, 1913. Serial No. 809,050.

To (ZZZ whom it may concern Be it known that I, JOHN R. LEEMING, asubject of the King of Great Britain, residing at Somerset, in thecounty of Gunnison and State of Colorado, have invented new and usefulImprovements in Nut- Locks, of which the following is a specification.

This invention relates to certain novel and useful improvements in nutlocks.

In carrying out the present invention it is my purpose to provide adevice for locking the nuts on the shanks of bolts which will embodyamong other features a cap secured to the threaded end of the shank ofthe bolt and a sleeve carried by the cap and inclosing the nut to holdthe latter against movement on the shank of the bolt when such nut isout of the range of the cap.

WVith the above and other objects in view, the invention consists in theconstruction,

combination and arrangement of parts hereinafter set forth in andfalling within the scope of the claims.

In the accompanying drawing: Figure 1 is a view in end elevation of abolt and nut thereon showing my invention applied. Fig. 2 is alongitudinal sectional view through the same.

Referring now to the accompanying drawing in detail, 1 designates abolt, while 2 indicates a nut threaded onto the shank of the bolt.Extending outwardly from the threaded end of the bolt and coaxialtherewith is a non-circular stem 8. This stem may be square, octagonalor any polygonal shape in cross section.

4; designates a cap of substantially cup shape having an aperture 5formed in the bottom wall thereof and designed to re ceive the stem 3,such aperture being of a configuration corresponding to that of thestem. In order to prevent accidental displacement of the cap from thestem, the latter is formed with a transverse passage 6 within which isdisposed a cotter pin 7 or other form of key.

In order to lock the nut on the bolt, I

employ a holder 8 in the form of a sleeve designed to inclose the nutand interposed between the edge of the flange of the cap and the workthrough which the bolt is passed. In the present instance, thesupplemental holder 8 has a flange surrounding the nut and of aconfiguration correspondmg to that of the nut, and a flange 'oflset fromthe first flange and surrounding held to the bolt and wherein mutilationof I the threads of the bolt or nut is avoided.

I claim:

1. In a nut lock, the combination with a bolt and nut thereon, of a capsecured to'the threaded end of said bolt, and a holder comprising asleeve carried by the cap and projecting forwardly thereof and inclosingthe nut to hold the latter upon the bolt.

2. In a nut lock, the combination with a bolt and nut thereon, of anon-circular stem secured to the threaded end; of the bolt and coaxialtherewith, a, cap upon said stem and incasing said bolt, means forholding said cap on the stem, and a holder cooperating with the cap andinclosing the nut to hold the latter on the bolt, said supplementalholder having a flange surrounding the nut and conforming to the shapethereof and a flange offset from the first flange and surrounding theside wall of the cap and of a configuration corresponding to that of thecap.

In testimony whereof Iafiix signature in presence of two witnesses.

JOHN R. LEEMING.

Witnesses: v

GEO. MGDERMEID, L. PETERSEN.

copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. 0

